<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
       <!-- 为 ECharts 准备一个具备大小（宽高）的 DOM -->
      <div id="main" style="width: 600px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import echarts from 'echarts'
import _ from 'lodash'
export default {

  data () {
    return {
      option: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },

  methods: {
    async getEchart() {
        // 基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'));
      const {data:res} = await this.$http.get('reports/type/1')
      console.log(res)
      // var result = {...this.option,...res.data}
      const result = _.merge(this.option,res.data)
      // 指定图表的配置项和数据
      // var option = {
      //     title: {
      //       text: '用户来源'
      //     },
      //     tooltip: {},
      //     legend: {
      //       data:['销量']
      //     },
      //     xAxis: {
      //       data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
      //     },
      //     yAxis: {},
      //     series: [{
      //       name: '销量',
      //       type: 'bar',
      //       data: [5, 20, 36, 10, 10, 20]
      //     }]
      // };
      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(result);
    }
  },

  created () {
  },
  mounted() {
    this.getEchart()
  }
}
</script>

<style lang='less' scoped>

</style>
